How many grams of LiF would need to be dissolved to make 400 mL of a 1.67 M solution? Group of answer choices 20 g LiF 30 g LiF 10 g LiF 40 g LiF

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.

If many scientists conduct the same or similar experiments, and all obtain similar results, a can be written, which is a generally agreed-upon statement that explains and predicts how a natural phenomenon works.